Earring post



FIG. 1 is a top front perspective view of an earring post showing my new design;

FIG. 2 is a front elevational view thereof, the rear view, the left side and the right side views being identical thereto;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for an earring post, as shown and described. 